Angled Castor (Ariadne ariadne minorata)

Angled Castor is a common butterfly found all over the island in all the year round, though becoming scarce above 1200m. It is abundant in degraded vegetations. Its larval host plant is Thel Edaru (Ricinus communis), a plant which is widely cultivated to extract Castor oil. Hence the vernacular English name for this butterfly. However in Sri Lanka only three Tragia (කහඹිලියා) species are identified as its larval host plants (Tragia plukenetii, Tragia involucrata(Indian Stinging Nettle) - both Known as වැල් කහඹිලියා in Sinhala  and Tragia hispida)

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Joker (Byblia ilithyia)

Rare butterfly restricted to the scrub lands of northwestern coast from Chilaw to Jaffna.  Ormiston recorded of seeing numbers settled on a small bush at Palatupana of Hambantota district in 1909. But neither him nor anyone else met it there since. Its larva feeds on leaves of Tragia plukenetii (වැල් කහඹිලියා)

වැල් කහඹිලියා[Wel kahambiliya] (Tragia plukenetii)

An indigenous twining perennial herb found in the dry lowlands. 

වැල් කහඹිලියා [Wel kahabiliya]/Indian Stinging Nettle (Tragia involucrata)

An indigenous perennial twining herb with stinging hairs. A weed of cultivation and waste grounds.